public ppi8255_interface(int num,
mem_read_handler portA_r, mem_read_handler portB_r, mem_read_handler portC_r,
mem_write_handler portA_w, mem_write_handler portB_w, mem_write_handler portC_w)
{
this.num = num;
this.portA_r = portA_r; this.portA_w = portA_w;
this.portB_r = portB_r; this.portB_w = portB_w;
this.portC_r = portB_r; this.portC_w = portC_w;
}
IOWritePort[] install_port_write_handler_common(int cpu, int start, int end, mem_write_handler handler, int install_at_beginning)
{
int i, oldsize;
oldsize = writeport_size[cpu];
writeport_size[cpu]++;
if (writeport[cpu] == null)
{
writeport[cpu] = new IOWritePort[writeport_size[cpu]];
}
else
{
Array.Resize<IOWritePort>(ref writeport[cpu], writeport_size[cpu]);
}
if (writeport[cpu] == null) return null;
if (install_at_beginning != 0)
{
/* can't do a single memcpy because it doesn't handle overlapping regions correctly??? */
for (i = oldsize; i >= 1; i--)
{
Array.Copy(writeport[cpu], i - 1, writeport[cpu], i, 1);
//memcpy(&writeport[cpu][i], &writeport[cpu][i - 1], sizeof(struct IOWritePort));
}
i = 0;
}
else
{
i = oldsize;
}
writeport[cpu][i] = new IOWritePort();
writeport[cpu][i].start = start;
writeport[cpu][i].end = end;
writeport[cpu][i].handler = handler;
return writeport[cpu];
}
public static void cpu_setbankhandler_w(int bank, mem_write_handler handler)
{
int offset = 0;
MHELE hardware;
if (handler == MWA_RAM_handler) { handler = mwh_ram; }
else if (handler == MWA_RAMROM_handler) { handler = mwh_ramrom; }
else if (handler == MWA_ROM_handler) { handler = mwh_rom; }
else if (handler == MWA_NOP_handler) { handler = mwh_nop; }
else if (handler == MWA_BANK1_handler) { hardware = 1; handler = bank_write_handler[hardware]; offset = bankwriteoffset[hardware]; }
else if (handler == MWA_BANK2_handler) { hardware = 2; handler = bank_write_handler[hardware]; offset = bankwriteoffset[hardware]; }
else if (handler == MWA_BANK3_handler) { hardware = 3; handler = bank_write_handler[hardware]; offset = bankwriteoffset[hardware]; }
else if (handler == MWA_BANK4_handler) { hardware = 4; handler = bank_write_handler[hardware]; offset = bankwriteoffset[hardware]; }
else if (handler == MWA_BANK5_handler) { hardware = 5; handler = bank_write_handler[hardware]; offset = bankwriteoffset[hardware]; }
else if (handler == MWA_BANK6_handler) { hardware = 6; handler = bank_write_handler[hardware]; offset = bankwriteoffset[hardware]; }
else if (handler == MWA_BANK7_handler) { hardware = 7; handler = bank_write_handler[hardware]; offset = bankwriteoffset[hardware]; }
else if (handler == MWA_BANK8_handler) { hardware = 8; handler = bank_write_handler[hardware]; offset = bankwriteoffset[hardware]; }
else if (handler == MWA_BANK9_handler) { hardware = 9; handler = bank_write_handler[hardware]; offset = bankwriteoffset[hardware]; }
else if (handler == MWA_BANK10_handler) { hardware = 10; handler = bank_write_handler[hardware]; offset = bankwriteoffset[hardware]; }
else if (handler == MWA_BANK11_handler) { hardware = 11; handler = bank_write_handler[hardware]; offset = bankwriteoffset[hardware]; }
else if (handler == MWA_BANK12_handler) { hardware = 12; handler = bank_write_handler[hardware]; offset = bankwriteoffset[hardware]; }
else if (handler == MWA_BANK13_handler) { hardware = 13; handler = bank_write_handler[hardware]; offset = bankwriteoffset[hardware]; }
else if (handler == MWA_BANK14_handler) { hardware = 14; handler = bank_write_handler[hardware]; offset = bankwriteoffset[hardware]; }
else if (handler == MWA_BANK15_handler) { hardware = 15; handler = bank_write_handler[hardware]; offset = bankwriteoffset[hardware]; }
else if (handler == MWA_BANK16_handler) { hardware = 16; handler = bank_write_handler[hardware]; offset = bankwriteoffset[hardware]; }
else
offset = bankwriteoffset[bank];
memorywriteoffset[bank] = offset;
memorywritehandler[bank] = handler;
}
public static _BytePtr install_mem_write_handler(int cpu, int start, int end, mem_write_handler handler)
{
MHELE hardware = 0;
int abitsmin;
int i, hw_set;
// if (errorlog) fprintf(errorlog, "Install new memory write handler:\n");
// if (errorlog) fprintf(errorlog, " cpu: %d\n", cpu);
// if (errorlog) fprintf(errorlog, " start: 0x%08x\n", start);
// if (errorlog) fprintf(errorlog, " end: 0x%08x\n", end);
//#ifdef __LP64__
// if (errorlog) fprintf(errorlog, " handler address: 0x%016lx\n", (unsigned long) handler);
//#else
// if (errorlog) fprintf(errorlog, " handler address: 0x%08x\n", (unsigned int) handler);
//#endif
abitsmin = (int)ABITSMIN(cpu);
/* see if this function is already registered */
hw_set = 0;
for (i = 0; i < MH_HARDMAX; i++)
{
/* record it if it matches */
if ((memorywritehandler[i] == handler) &&
(memorywriteoffset[i] == start))
{
printf("handler match - use old one\n");
hardware = (byte)i;
hw_set = 1;
}
}
if (handler == MWA_RAM_handler)
{
hardware = HT_RAM; /* sprcial case ram write */
hw_set = 1;
}
else if (handler == MWA_BANK1_handler) { hardware = 1; hw_set = 1; }
else if (handler == MWA_BANK2_handler) { hardware = 2; hw_set = 1; }
else if (handler == MWA_BANK3_handler) { hardware = 3; hw_set = 1; }
else if (handler == MWA_BANK4_handler) { hardware = 4; hw_set = 1; }
else if (handler == MWA_BANK5_handler) { hardware = 5; hw_set = 1; }
else if (handler == MWA_BANK6_handler) { hardware = 6; hw_set = 1; }
else if (handler == MWA_BANK7_handler) { hardware = 7; hw_set = 1; }
else if (handler == MWA_BANK8_handler) { hardware = 8; hw_set = 1; }
else if (handler == MWA_BANK9_handler) { hardware = 9; hw_set = 1; }
else if (handler == MWA_BANK10_handler) { hardware = 10; hw_set = 1; }
else if (handler == MWA_BANK11_handler) { hardware = 11; hw_set = 1; }
else if (handler == MWA_BANK12_handler) { hardware = 12; hw_set = 1; }
else if (handler == MWA_BANK13_handler) { hardware = 13; hw_set = 1; }
else if (handler == MWA_BANK14_handler) { hardware = 14; hw_set = 1; }
else if (handler == MWA_BANK15_handler) { hardware = 15; hw_set = 1; }
else if (handler == MWA_BANK16_handler) { hardware = 16; hw_set = 1; }
else if (handler == MWA_NOP_handler) { hardware = HT_NOP; hw_set = 1; }
else if (handler == MWA_RAMROM_handler) { hardware = HT_RAMROM; hw_set = 1; }
else if (handler == MWA_ROM_handler) { hardware = HT_ROM; hw_set = 1; }
if (hw_set == 0) /* no match */
{
/* create newer hardware handler */
if (wrhard_max == MH_HARDMAX)
{
printf("write memory hardware pattern over !\n");
printf("Failed to install new memory handler.\n");
return memory_find_base(cpu, start);
}
else
{
/* register hardware function */
hardware = (byte)wrhard_max++;
memorywritehandler[hardware] = handler;
memorywriteoffset[hardware] = start;
}
}
/* set hardware element table entry */
set_element(cpu, new _BytePtr(cur_mw_element[cpu]),
(int)(((uint)start) >> abitsmin),
(int)(((uint)end) >> abitsmin),
hardware, new _BytePtr(writehardware), ref wrelement_max);
printf("Done installing new memory handler.\n");
printf("used write elements %d/%d , functions %d/%d\n", wrelement_max, MH_ELEMAX, wrhard_max, MH_HARDMAX);
return memory_find_base(cpu, start);
}
public IOWritePort(int start, int end, mem_write_handler handler) { this.start = start; this.end = end; this.handler = handler; }
public MemoryWriteAddress(int start, int end, mem_write_handler handler, _BytePtr _base, int[] size) { this.start = start; this.end = end; this.handler = handler; this._base = _base; this.size = size; }
public MemoryWriteAddress(int start, int end, mem_write_handler handler) { this.start = start; this.end = end; this.handler = handler; }
